dudeguy3593
10.09.2019 •
Mathematics
Which statement could be used in step 2 when proving x = 30
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Ответ:
ORP and ORN are a linear pair
Ответ:
Option A.
Step-by-step explanation:
Statements Reason
1). m∠ORP = 80°, m∠ORN = (3x + 10)° Given
2). m∠ORP + m∠ORN = 180° ∠ORP & ∠ORN are linear pair
80 + (3x + 10) = 180
3x + 90 = 180
3x = 180 - 90
3x = 90
x =
= 30°
Hence x = 30° is proved.
Option A. is the answer.
Ответ:
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Step-by-step explanation: